Chock-block.



J. J. GEARY.

CHOCK BLOCK APPLICATION FILED MAY 14. I918.

1,28%,8Q'J g Patented 06t.29,1918.

J. J. GEARY.

CHOCK BLOCK.

APPLICATION FILED MAY l4, 191a.

1,282,807, Patented Oct. 29, 1918.-

2 SHEETS-SHEET 2.

JAMES J. GEARY, or KERRY, OREGON.

GHOCK-BLOCK.

Application filed May 14, 1918.

To all whom it may concern:

Kerry, in the county of Columbia and State.

of Oregon, have invented a new and useful Chock-Block, of which the following is a specification.

The subject of the present invention is a chock block intended for use on logging cars, though applicable to any purpose for which a chock block of this character may be needed.

A main object of the invention is the provision of a chock block which may be readily tripped to permit discharge of the logs from a car.

A further object of the invention is the provision of a chock block which may be ad justed to different positions.

A still further object of the invention is the provision of means for tripping the block.

The invention also contemplates generally improving the construction and enhancing the utility of chock blocks.

-With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of the invention is shown in th accompanying drawings, wherein Figure 1 is a vieW in side elevation of a. logging car with chock blocks constructed in accordance with the invention in place thereon;

Fig. 2 is a plan view, partly in section and part broken away, of a car bunker equipped with a chock block;

Fig. 3 is a view in central longitudinal section, partly in elevation, of the same;

Fig. i is a detail View in longitudinal section, partly in elevation, of a car bunker and showing the chock block in tripped positions;

Fig. 5 is a cross section taken on the line 5 -5 of Fig. 3;

Fig. 6 is a perspective view of the chock block;

Specification of Letters Patent.

Patented (lot. 29, 1918..

Serial No. 234,431.

Fig. 7 is a detail view in elevation of the grab-block.

Referring to the drawings by numerals of reference The usual logging fiat car is shown conventionally and is indicated generally by the numeral 1. The car is represented as loaded with logs.

Extending transversely of the flat car 1 are the bunkers 2 which are spaced longitudinally of the car. The bunkers 2 are hollow, and in one end of each bunker are plates 3 which are secured in any suitable manner to the opposed faces of the vertical walls of the bunker. The plates 3 are formed with longitudinal slots along the lower edges of which are provided racks 4.

The chock block, which is adapted to be mounted at one end of the bunker, consists of a plate or member 5, from one end of which extend, in opposite directions, the lugs 6 which extend within the slots of the plates 3 and engage the racks 4 to permit the plate 5 to be moved to selected positions on the bunker 2. Tothe other end of the plate 5 is hingedly attached a plate 7, the sides of which are adapted to overlie the plates so that the plate 7 may slide upon the upper edges of the plates 3. The plate 7 has a rib or lug 8 formed on or secured to its under surface, and this lug is apertured for attachment to one end of a chain 9, which is led through an aperture 10 in the plate and thence through the hollow bunker 2, from the other end of which it protrudes.

Adjacent that end of the bunker 2 from which the chain 9 protrudes, a division wall 11 is secured which wall extends transversely of the bunker. The wall 11 is provided with an aperture 12 through which the chain 9 passes, and a grab-block 13 is slidable upon the outer face of the wall 11, being held thereon by the guide strips 14 or in other suitable manner. The grab-block 18 is formed with a key-hole slot 13 which is provided to permit free passage of the chain 9 when the grab block is in one position, and to engage a link of the chain and bind the chain against movement, when the grabblock is in its other position.

Any desired means may be used for sliding the grab-block 13 along the face of the wall 11, one form being shown herein which consists of a shaft 15, journaled in a side- Wall of the bunker 2 and formed, at' its inner end, with a radially extending arm 16 which extends through a slot formed in the wall 11 and has pivotal connection with the block '13. To the outer end of this shaft 15 is secured a lever arm 17, which may be thrown upwardly to raise'the block 13 and engage the link of the chain 9 in the contracted portion of the key-hole slot 18, or downwardly to allow the chain to run freely through the enlarged portion of the slot. A bracket 18 may be secured to the bunker 2 to provide a stop for the upward movement of the lever 17, and the lever may be locked in its raised position by means of a pin or in any other manner, no specific locking means belng shown as the same forms no part of the present invention.

In practice the device is used 1n the following manner l fhen the car is to be loaded with logs, the chock blocks are moved to the desired positions and the lugs '6 dropped into contact with the racks a, thus locking the plate 5 111 place. The chains 9 are then drawn to pull the plates 7 toward the plates 5 and set the blocks in chocking position, as shown in Figs. 1, 2 and 3. The logs may now be loaded on the car without danger of rolling off, the blocks being firmly held in position by the engagement of the grab-block 13 with the chain 9.

lVhen the logs are to be unloaded, the levers 17 are thrown to slide the grab-block 18 and release the chains 9, when the chock blocks will assume a position shown in Fig. a under the pressure of the logs, and allow the logs to roll from the car.

It will be noted that the release of the chains takes place at one side of the car, while the logs are discharged from the opposite side. This is forthe purpose of avoiding the danger of the logs falling upon and injuring the attendant when the chock blocks are released.

Having thus described the invention, what is claimed as new and sought by Letters Patent, is

1. A chock block, including hingedly con nected members, means for anchoring the members in selected position, an element secured to one of the members for drawing the members to checking position, and means detachably engaging the element to secure the members in checking position.

2. A chock block, including hingedly connected members, means for anchoring one of said members to secure the members in se lected positions, an element secured to the second of said members for drawing the members to checking position, and means engageable with theelement for locking the members.

3. A chock block, including hingedly connected members, one of said members having an aperture therein, means for anchoring said apertured member, a chain passing throngh the aperture and secured to the second member, and means for securing the chain to hold the members in checking position.

4;. A check block, including hingedly connected members, one of said members having an aperture therein, a chain passing through the aperture and secured to the second member, and means for locking the chain to hold the members in chocking position and releasing the chain to release the members to non-chocking position.

5. A chock block, including hingedly connected members, means for anchoring one of said members in selected positions, an ele ment secured to the second of said members for thawing the members to chocking position, and detachable means engageable with the element for locking the members in chocking position.

6. A chock block, including hingedly con nected members, laterally extending lugs on one of said members, means detachably receiving the lugs to anchor the member, an element engaging the second member for drawing the members to chocking position, and means for locking the element to bind the members in position.

7. The combination with a car bunk, and racks secured to the hunk, of hingedly connected members engageable with the racks to secure the members in selected positions, and detachable means for securing the members in chocking position.

8. The combination with a car bunk, and racks secured to the hunk, of hingedly connected members, lugs on one of the members and engageable with the racks to anchor the members, an element secured to the second member for drawing the members to checking position, and detachable means for looking the element.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

JAMES J. GEARY.

Witnesses:

RALPH SMITH, G. H. BRYANT.

Copies of this patent may be obtained for live centa each, by addressing the Commissioner of Patents.

Washington, D. G." 

